CN203770665U - Internal pressure self-tightening sealing steam valve - Google Patents
Internal pressure self-tightening sealing steam valve Download PDFInfo
- Publication number
- CN203770665U CN203770665U CN201420061428.2U CN201420061428U CN203770665U CN 203770665 U CN203770665 U CN 203770665U CN 201420061428 U CN201420061428 U CN 201420061428U CN 203770665 U CN203770665 U CN 203770665U
- Authority
- CN
- China
- Prior art keywords
- self
- sealing
- valve
- tightening
- tightening sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 73
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model provides an internal pressure self-tightening sealing steam valve. A first lower self-tightening sealing element is arranged in a cavity of a valve deck. A first upper self-tightening sealing element is arranged at the bottom of a sealing gland. The opposite ends of the first upper sealing element and the first lower sealing element are both of right-angle toothed structures and slopes are oppositely installed in a tightly contact mode. A second upper self-tightening sealing element is arranged at the bottom of the valve deck. A second lower self-tightening sealing element is arranged at the top of a valve flap. The opposite ends of the second upper sealing element and the second lower sealing element are both of right-angle toothed structures and slopes are oppositely arranged. According to the steam valve, every two oppositely arranged sealing elements are attached to each other more tightly through internal pressure, the larger the pressure is, the tighter the two oppositely arranged sealing elements are attached to each other, the internal pressure self-tightening sealing function is achieved, and the sealing effect is good.
Description
Technical field
The utility model relates to a kind of steam valve, relates in particular to a kind of steam valve with interior pressure self-tightening sealing that is applied to the field such as chemical industry, oil field.
Background technique
Steam valve is widely used in the pipeline control in the fields such as existing power station, metallurgy, chemical industry, oil field, but its complex structure, in the time of work, usually because interior pressure is excessive, causes the phenomenons such as inner leakage of oil to produce.
Summary of the invention
The problem existing for prior art, the utility model provides a kind of steam valve with interior pressure self-tightening sealing, be the interior pressure of the Sealing composition self-tightening sealing that right angle profile of tooth and inclined-plane are oppositely arranged by two one end, by interior pressure, two Sealings that are oppositely arranged are fitted more closely, pressure is larger, fit tightr, reach interior pressure self-tightening sealing, good sealing effect.
The technical solution of the utility model is: a kind of steam valve of interior pressure self-tightening sealing, comprises handwheel, support, valve rod, valve gap, flap, valve body and sealing gland; Described valve rod is made up of the rotatable stock being fixedly connected with of upper and lower two-part, valve rod top be fixedly connected with handwheel, upper end by support fixedly mount, lower end by the valve gap being connected with support be fixed on support, bottom connects flap;
Described valve gap is supporting is installed on chamber, valve body top, and with the cavity of hollow, valve rod lower end arrives in valve body cavity through inside cavity;
In described valve gap cavity, be provided with first time self-tightening sealing part, described sealing gland bottom is provided with self-tightening sealing part on first, and upper and lower two relative one end of Sealing are the relative close contact of right angle tooth-shape structure and inclined-plane and install;
Described valve gap bottom is provided with self-tightening sealing part on second, and described flap top is provided with self-tightening sealing part second time, and upper and lower two relative one end of Sealing are right angle tooth-shape structure and inclined-plane is oppositely arranged.
Further, the crown angle of Sealing right angle profile of tooth is 30 degree, ensures that inclined-plane surface of contact is large, and sealing effect is better.
Further, bottom, described valve rod upper end is spherical structure, and top, lower end is spherical cavity structure, and in the nested cavity that is arranged at top, lower end of spheroid of bottom, upper end, both install in rotatable contact.
Further, described valve gap bottom and valve body surface of contact are provided with metal winding.
Further, the axis of described valve rod and valve body are imported and exported connecting line angle at 45 °, end face center.
The beneficial effects of the utility model are:
(1) be the interior pressure of the Sealing composition self-tightening sealing that right angle profile of tooth and inclined-plane are oppositely arranged by two one end, by interior pressure, two Sealings that are oppositely arranged are fitted more closely, pressure is larger, fits tightr, reach interior pressure self-tightening sealing, good sealing effect.
(2) utilize integrated valve rod from top to bottom, fixed installation respectively, has ensured the simplification of structure up and down, ensures that again it is solid and reliable.
(3) be provided with metal winding in valve gap bottom and valve body surface of contact, further it carried out to encapsulation process, enhanced leaktightness effect.
(4) valve body is imported and exported while installation, and the axis of its end face center connecting line and valve rod and angle at 45 ° greatly reduce fluid resistance while keying.
(5) the upper and lower two-part of valve rod are by the nested installation of smooth sphere, and spin friction is little, extension device working life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is handwheel, and 2 is support, and 3 is valve rod, and 4 is valve gap, and 5 is flap, and 6 is valve body, and 71 is self-tightening sealing on first, and 72 is first time self-tightening sealing, and 81 is self-tightening sealing on second, and 82 is second time self-tightening sealing, and 9 for metal is wound around, and 10 is sealing gland.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of steam valve of interior pressure self-tightening sealing, comprises handwheel 1, support 2, valve rod 3, valve gap 4, flap 5, valve body 6 and sealing gland 10; Wherein valve rod 3 is made up of the rotatable stock being fixedly connected with of upper and lower two-part, and bottom, upper end is spherical structure, and top, lower end is spherical cavity structure, and in the nested cavity that is arranged at top, lower end of spheroid of bottom, upper end, both install in rotatable contact.Valve rod 3 tops be fixedly connected with handwheel 1, upper end by support 2 fixedly mount, lower end by the valve gap 4 being connected with support 2 be fixed on support 2, bottom connects flap 5.
In valve gap 4 cavitys, be provided with first time self-tightening sealing part 72, sealing gland 9 bottoms are provided with self-tightening sealing part 71 on first, and upper and lower two relative one end of Sealing are the relative close contact of right angle tooth-shape structure and inclined-plane and install.Valve gap 4 bottoms are provided with self-tightening sealing part 81 on second, and flap 5 tops are provided with self-tightening sealing part 82 second time, and upper and lower two relative one end of Sealing are right angle tooth-shape structure and inclined-plane is oppositely arranged, and the crown angle of Sealing right angle profile of tooth is 30 degree.
The present embodiment is the interior pressure of the Sealing composition self-tightening sealing that right angle profile of tooth and inclined-plane are oppositely arranged by two one end, by interior pressure, two Sealings that are oppositely arranged are fitted more closely, pressure is larger, fits tightr, reach interior pressure self-tightening sealing, good sealing effect.Meanwhile, utilize integrated valve rod from top to bottom, fixed installation respectively, has ensured the simplification of structure up and down, ensures that again it is solid and reliable.
Further, valve gap 4 bottoms and valve body 1 surface of contact are provided with metal and are wound around 9.Further the present embodiment device is carried out to encapsulation process, enhanced leaktightness effect.
Meanwhile, the axis of valve rod 3 and valve body are imported and exported connecting line angle at 45 °, end face center, greatly reduce fluid resistance while keying.
Although described the invention by embodiment, those of ordinary skill in the art know, the utility model has many distortion and variation and does not depart from spirit of the present utility model, wishes that appended claim comprises these distortion and variation and do not depart from spirit of the present utility model.
Claims (5)
1. in, press a steam valve for self-tightening sealing, comprise handwheel (1), support (2), valve rod (3), valve gap (4), flap (5), valve body (6) and sealing gland (10); It is characterized in that: described valve rod (3) is made up of the rotatable stock being fixedly connected with of upper and lower two-part, valve rod (3) top is fixedly connected with handwheel (1), upper end and is fixed on by the valve gap (4) being connected with support (2) by support (2) fixed installation, lower end that support (2) is upper, bottom connection flap (5);
Described valve gap (4) is supporting is installed on chamber, valve body (1) top, and with the cavity of hollow, valve rod (3) lower end arrives in valve body (6) cavity through inside cavity;
In described valve gap (4) cavity, be provided with first time self-tightening sealing part (72), described sealing gland (9) bottom is provided with self-tightening sealing part (71) on first, and upper and lower two relative one end of Sealing are the relative close contact of right angle tooth-shape structure and inclined-plane and install;
Described valve gap (4) bottom is provided with self-tightening sealing part (81) on second, and described flap (5) top is provided with second time self-tightening sealing part (82), and upper and lower two relative one end of Sealing are right angle tooth-shape structure and inclined-plane is oppositely arranged.
2. the steam valve of a kind of interior pressure self-tightening sealing according to claim 1, is characterized in that: the crown angle of Sealing right angle profile of tooth is 30 degree.
3. the steam valve of a kind of interior pressure self-tightening sealing according to claim 1, it is characterized in that: bottom, described valve rod (3) upper end is spherical structure, top, lower end is spherical cavity structure, and in the nested cavity that is arranged at top, lower end of spheroid of bottom, upper end, both install in rotatable contact.
4. the steam valve of a kind of interior pressure self-tightening sealing according to claim 1, is characterized in that: described valve gap (4) bottom and valve body (1) surface of contact are provided with metal and are wound around (9).
5. the steam valve of a kind of interior pressure self-tightening sealing according to claim 1, is characterized in that: the axis of described valve rod (3) and valve body are imported and exported connecting line angle at 45 °, end face center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061428.2U CN203770665U (en) | 2014-02-11 | 2014-02-11 | Internal pressure self-tightening sealing steam valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061428.2U CN203770665U (en) | 2014-02-11 | 2014-02-11 | Internal pressure self-tightening sealing steam valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770665U true CN203770665U (en) | 2014-08-13 |
Family
ID=51287856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420061428.2U Expired - Lifetime CN203770665U (en) | 2014-02-11 | 2014-02-11 | Internal pressure self-tightening sealing steam valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770665U (en) |
-
2014
- 2014-02-11 CN CN201420061428.2U patent/CN203770665U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |